36219821 has 8 divisors (see below), whose sum is σ = 39883104. Its totient is φ = 32618320.

The previous prime is 36219793. The next prime is 36219823. The reversal of 36219821 is 12891263.

36219821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36219821 - 2¹⁰ = 36218797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36219823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14210 + ... + 16563.

It is an arithmetic number, because the mean of its divisors is an integer number (4985388).

Almost surely, 2^36219821 is an apocalyptic number.

It is an amenable number.

36219821 is a deficient number, since it is larger than the sum of its proper divisors (3663283).

36219821 is a wasteful number, since it uses less digits than its factorization.

36219821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30891.

The product of its digits is 5184, while the sum is 32.

The square root of 36219821 is about 6018.2905380183. The cubic root of 36219821 is about 330.8634291445.

The spelling of 36219821 in words is "thirty-six million, two hundred nineteen thousand, eight hundred twenty-one".